Whitlock Avenue is one of
the best stations for rail fanning on the hole system in my opinion. The
station is located between where the Pelham Line exits its tunnel after
Hunts Point Avenue (the portal is clearly visible from the station) and
where the 6
goes around a sharp curve, over the Sheridan Expressway (I-895), over
Amtrak's line to Boston, and over the Bronx River, one of the few real
rivers that runs in New York (it's not in or is an estuary like
others), and then down to it's normal typical el on Westchester Avenue.
The Bridges over the Bronx River is quite high. The station has two
side platforms with staircases at the very northern end of the platform
which block part of the curves few for taking pictures (you have to be
on the Manhattan-bound platform). After the windscreen ends on the
Pelham-bound platform you can get a nice picture of trains going down
into the tunnels or of trains going over the bridge if you have a good
zoom and/or a high mega pixel camera.

(Whitlock6) Looking out from the southern end of the Pelham-bound patform at Whitlock Avenue (6). The expressway below is the Sheridan, Amtrak to Boston is to the right of it. Streight ahead is the 6 trains high bridge over the Bronx River with a 6 train curving onto it.
Photo by Jeremiah Cox, 8 November, 2004

(Whitlock9) A staircase down to the mezzanine at Whitlock Avenue (6).
Photo by Jeremiah Cox, 8 November, 2004

(r142apasstun)
Two R-142A 6 trains pass each other on the drop into the tunnel portal
with the Sheridan Express rising and curving over in the Background
viewed from Whitlock Avenue (6).
Photo by Jeremiah Cox, 8 November, 2004

(r142apass)
Two R-142A 6 trains pass each other way of in the distance from Whitlock Avenue (6) after going over the river when the el drops down on Westchester Avenue.
Photo by Jeremiah Cox, 8 November, 2004

(r142along) A photo of a complete ten car train of R-142A 6 trains going over the Bronx River viewed from Whitlock Avenue (6).
Photo by Jeremiah Cox, 8 November, 2004
r142alongz-a zoom in on the train